hi i have asus M3A78-EM board ,amd phenom x4 ,onboard ATI Radeon™ HD 3200 with window xp sp2. there was a folder named "A" (as i was arranging files in Alphabetically order) in a directory.after some day the folder wasn't there.i don't remember deleting it.but when wanted to make a new folder ,it shows "Error Renaming File or Folder Cannot rename New Folder: A file with the name you specified already exists. Specify a different file name." but there isn't any folder named "A".i have checked hidden folders as well as show system files,but nothing.also used file recovery but no help. another problem is that when i resume from hibernation ,some user interface of some programs doesn't show properly.but when i change the resolution or color settings.it comes back.